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TCS Assistant System Engineer Trainee Interview Questions and Answers for Freshers

Updated 1 Jul 2025

75 Interview questions

An Assistant System Engineer Trainee was asked
Q. What are some built-in functions in C?
Ans. 

Some built-in functions in C are printf(), scanf(), strlen(), strcpy(), etc.

  • printf() - used to print output on the console

  • scanf() - used to take input from the user

  • strlen() - used to find the length of a string

  • strcpy() - used to copy one string to another

  • rand() - used to generate random numbers

An Assistant System Engineer Trainee was asked
Q. What is the Python code to shut down a laptop?
Ans. 

The python code to shutdown a laptop is 'os.system('shutdown /s /t 1')'

  • Import the os module

  • Use the os.system() function

  • Pass the command 'shutdown /s /t 1' as an argument

  • The '/s' flag is used to shutdown the computer

  • The '/t 1' flag is used to set a timer of 1 second before shutdown

Assistant System Engineer Trainee Interview Questions Asked at Other Companies for Fresher

asked in TCS
Q1. What is the output of the following C code? #include int main() { ... read more
asked in TCS
Q2. Compute the nearest larger number by interchanging its digits upd ... read more
asked in TCS
Q3. Write a program to determine if a number is a palindrome.
asked in TCS
Q4. Basic print function of python and OOPS concept explanation
asked in TCS
Q5. Write a SQL query to find all records whose base branch city is K ... read more
An Assistant System Engineer Trainee was asked
Q. What is the prototype of the C language?
Ans. 

The prototype of C language is int main()

  • The prototype specifies the return type and parameters of a function

  • int main() is the prototype for the main function in C

  • The parentheses are required even if there are no parameters

  • Other functions can have different prototypes depending on their return type and parameters

An Assistant System Engineer Trainee was asked
Q. What are the advantages of Python?
Ans. 

Python is a versatile, high-level programming language with a simple syntax and powerful libraries.

  • Easy to learn and use

  • Large standard library with many modules for various tasks

  • Cross-platform compatibility

  • Supports multiple programming paradigms

  • Used in various fields such as web development, data science, machine learning, and more

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An Assistant System Engineer Trainee was asked
Q. What do you mean by abstraction?
Ans. 

Abstraction is the process of hiding complex details and showing only essential features of an object or system.

  • Abstraction helps in managing complexity by breaking down a system into smaller, more manageable parts.

  • It allows us to focus on the important aspects of a system while ignoring the irrelevant details.

  • Abstraction is used in programming to create classes and objects that represent real-world entities.

  • For e...

🔥 Asked by recruiter 2 times
An Assistant System Engineer Trainee was asked
Q. What are the four pillars of OOPS?
Ans. 

The four pillars of OOPS are Abstraction, Encapsulation, Inheritance, and Polymorphism.

  • Abstraction: Hiding implementation details and showing only necessary information.

  • Encapsulation: Wrapping data and methods into a single unit.

  • Inheritance: Acquiring properties and behavior of a parent class by a child class.

  • Polymorphism: Ability of an object to take many forms or have multiple behaviors.

An Assistant System Engineer Trainee was asked
Q. What do you know about DBMS?
Ans. 

DBMS stands for Database Management System. It is a software system that allows users to define, create, maintain and control access to databases.

  • DBMS is used to manage large amounts of data efficiently.

  • It provides a way to store, retrieve and manipulate data in a structured manner.

  • It ensures data integrity and security.

  • Examples of DBMS include MySQL, Oracle, SQL Server, and PostgreSQL.

Are these interview questions helpful?
🔥 Asked by recruiter 5 times
An Assistant System Engineer Trainee was asked
Q. What is the difference between method overloading and method overriding?
Ans. 

Method overloading is having multiple methods with the same name but different parameters. Method overriding is having a method in a subclass with the same name and parameters as a method in its superclass.

  • Method overloading is a compile-time polymorphism while method overriding is a runtime polymorphism.

  • Method overloading is used to provide different ways of calling the same method with different parameters.

  • Metho...

🔥 Asked by recruiter 2 times
An Assistant System Engineer Trainee was asked
Q. What do you mean by OOPS?
Ans. 

OOPS stands for Object-Oriented Programming System

  • OOPS is a programming paradigm that focuses on objects and their interactions

  • It allows for encapsulation, inheritance, and polymorphism

  • Encapsulation refers to the bundling of data and methods within a single unit

  • Inheritance allows for the creation of new classes based on existing ones

  • Polymorphism allows for the use of a single interface to represent multiple types ...

An Assistant System Engineer Trainee was asked
Q. How do you print the address of a pointer, the address of a variable, and the value in a variable?
Ans. 

Printing the address of a pointer, address of a variable and value in variable.

  • To print the address of a pointer, use the '&' operator before the pointer variable name.

  • To print the address of a variable, use the '&' operator before the variable name.

  • To print the value in a variable, simply use the variable name.

TCS Interview Experiences

77 interviews found

Interview experience
3
Average
Difficulty level
Easy
Process Duration
2-4 weeks
Result
No response

I appeared for an interview in Mar 2025, where I was asked the following questions.

  • Q1. Tell me about SQL commands (DML and DDL)
  • Ans. 

    SQL commands are categorized into DML for data manipulation and DDL for database structure definition.

    • DML (Data Manipulation Language): Used for managing data within schema objects. Examples include SELECT, INSERT, UPDATE, DELETE.

    • SELECT: Retrieves data from one or more tables. Example: SELECT * FROM employees;

    • INSERT: Adds new records to a table. Example: INSERT INTO employees (name, age) VALUES ('John Doe', 30);

    • UPDATE:...

  • Answered by AI
  • Q2. What will you do if you delete production database table by mistake?
  • Ans. 

    Accidentally deleting a production database table requires immediate action to restore data and prevent further issues.

    • Assess the situation: Determine the extent of the deletion and its impact on the application.

    • Check backups: Look for the most recent backup of the database to restore the deleted table.

    • Use transaction logs: If available, utilize transaction logs to recover the deleted data.

    • Notify stakeholders: Inform r...

  • Answered by AI
  • Q3. What will you do if you encounter any problem?
  • Ans. 

    When encountering a problem, I analyze the issue, seek solutions, and learn from the experience to improve future responses.

    • Identify the Problem: I first clarify the issue by gathering all relevant information. For example, if a system is down, I check logs and error messages.

    • Research Solutions: I look for documentation, online resources, or consult with colleagues to find potential solutions. For instance, I might ref...

  • Answered by AI
  • Q4. What will you do if you got selected in TCS and what if not?
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
6-8 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Feb 2024. There were 3 interview rounds.

Round 1 - Aptitude Test 

NQT test conducted by TCS every year.

Round 2 - Technical 

(5 Questions)

  • Q1. Tell me about yourself.
  • Ans. 

    I am a recent graduate with a degree in Computer Science, passionate about technology and eager to learn and grow in the field of system engineering.

    • Recent graduate with a degree in Computer Science

    • Passionate about technology and eager to learn

    • Interested in pursuing a career in system engineering

  • Answered by AI
  • Q2. Coding questions were asked on the NQT paper.
  • Q3. Questions based on your resume.
  • Q4. Deployed projects for a digital profile are a plus.
  • Q5. Managerial questions like Why tcs?
Round 3 - HR 

(4 Questions)

  • Q1. Tell me about yourself.
  • Ans. 

    I am a recent graduate with a degree in Computer Science, passionate about technology and eager to learn and grow in the field of system engineering.

    • Recent graduate with a degree in Computer Science

    • Passionate about technology and eager to learn

    • Interested in pursuing a career in system engineering

  • Answered by AI
  • Q2. Who is CEO of TCS?
  • Ans. 

    Rajesh Gopinathan is the CEO of TCS.

    • Rajesh Gopinathan took over as CEO of TCS in 2017.

    • He has been with TCS since 2001 and has held various leadership roles.

    • Under his leadership, TCS has continued to grow and expand globally.

  • Answered by AI
  • Q3. Relocation based question.
  • Q4. Questions related to are you comfortable in testing profile?

Interview Preparation Tips

Topics to prepare for TCS Assistant System Engineer Trainee interview:
  • Mathematics
  • Aptitude
  • DSA
  • DBMS
  • OS
  • OOPS
Interview preparation tips for other job seekers - Prepare for NQT exams after this interview is going to be easy for you.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed in Jul 2024. There was 1 interview round.

Round 1 - Japanese round 

(5 Questions)

  • Q1. Self introduction in Japanese
  • Q2. Why I choosen Japanese language? ( In Japanese)
  • Ans. 

    I chose to learn Japanese because of my interest in the culture, language, and opportunities it provides.

    • I have always been fascinated by Japanese culture, including anime, manga, and traditional arts.

    • I believe learning Japanese will open up new career opportunities, especially in the tech industry where Japanese companies are prominent.

    • I enjoy challenging myself with learning new languages and Japanese seemed like an ...

  • Answered by AI
  • Q3. Tell me your strength and weakness ( in Japanese)
  • Ans. 

    My strength is my ability to adapt quickly to new situations, while my weakness is that I can be overly critical of my own work.

    • Strength: Quick adaptability - I am able to learn new systems and processes efficiently.

    • Weakness: Overly critical - I tend to be hard on myself when evaluating my work, which can sometimes slow me down.

  • Answered by AI
  • Q4. They will give you a passage to read and translate.
  • Q5. They will ask you to read some kanji and meaning

Interview Preparation Tips

Interview preparation tips for other job seekers - Don't be panic. Just give your best and enjoy the interview process.
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
  • Q1. What is java and how it is useful in our daily life
  • Ans. 

    Java is a versatile programming language used in various applications, enhancing daily life through technology.

    • Widely used for building mobile applications, especially Android apps like WhatsApp and Instagram.

    • Powering web applications and services, such as e-commerce platforms like Amazon.

    • Utilized in enterprise solutions for managing business processes, like CRM systems.

    • Enables the development of embedded systems in de...

  • Answered by AI
  • Q2. Explain Oops concepts
  • Ans. 

    OOP concepts include encapsulation, inheritance, polymorphism, and abstraction, forming the foundation of object-oriented programming.

    • Encapsulation: Bundling data and methods that operate on the data within a single unit (class). Example: A class 'Car' with attributes like 'color' and methods like 'drive()'.

    • Inheritance: Mechanism where one class inherits properties and behaviors from another. Example: 'ElectricCar' inh...

  • Answered by AI
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Company Website and was interviewed in Jan 2024. There were 3 interview rounds.

Round 1 - Aptitude Test 

Time and distance, ratio, speed of trains, problem of ages and more...

Round 2 - Technical 

(2 Questions)

  • Q1. For Fresher they ask about what you showcase in your resume. Too easy to clear
  • Q2. Basics of Programming
Round 3 - HR 

(1 Question)

  • Q1. They ask about CGPA and arrear if any nothing complex

Interview Preparation Tips

Interview preparation tips for other job seekers - As a fresher it is too easy to clear the interview.
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Company Website and was interviewed in Oct 2023. There were 2 interview rounds.

Round 1 - Technical 

(3 Questions)

  • Q1. What is class and object?
  • Ans. 

    A class is a blueprint for creating objects, while an object is an instance of a class.

    • A class defines the properties and behaviors of objects.

    • An object is a specific instance of a class.

    • Classes can have attributes (variables) and methods (functions).

    • Objects can interact with each other by calling methods on each other.

    • Example: Class 'Car' can have attributes like 'color' and 'model', while an object 'myCar' can be an ...

  • Answered by AI
  • Q2. Explain public static void main.
  • Ans. 

    The public static void main is the entry point of a Java program.

    • public: Access modifier indicating that the method is accessible from outside the class.

    • static: Indicates that the method belongs to the class itself, not an instance of the class.

    • void: Indicates that the method does not return any value.

    • main: The name of the method that serves as the entry point for the program.

    • String[] args: An array of strings that can...

  • Answered by AI
  • Q3. Difference between C++ and Java
  • Ans. 

    C++ is a statically typed language with a focus on performance and low-level memory manipulation, while Java is a platform-independent language with automatic memory management.

    • C++ is a statically typed language, while Java is a dynamically typed language

    • C++ allows for manual memory management, while Java has automatic memory management through garbage collection

    • C++ supports multiple inheritance, while Java supports on...

  • Answered by AI
Round 2 - HR 

(2 Questions)

  • Q1. Tell me about yourself
  • Q2. Are you ready for relocation
  • Ans. 

    Yes, I am ready for relocation as it offers opportunities for growth and new experiences in my career.

    • Relocation allows me to adapt to new environments and cultures, enhancing my personal and professional growth.

    • I am excited about the possibility of working in different locations, which can broaden my perspective and skill set.

    • For example, relocating to a tech hub can provide access to cutting-edge projects and network...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - If you are fresher prepared basics of OOP, some language like C++, Core Java, MySQL Database

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I appeared for an interview before May 2024, where I was asked the following questions.

  • Q1. Explain Deep Learning and Machine Learning
  • Ans. 

    Deep Learning is a subset of Machine Learning that uses neural networks to model complex patterns in data.

    • Machine Learning (ML) involves algorithms that learn from data to make predictions or decisions without being explicitly programmed.

    • Deep Learning (DL) is a specialized form of ML that uses multi-layered neural networks to analyze various levels of data abstraction.

    • Examples of ML include decision trees and support v...

  • Answered by AI
  • Q2. Write a program in your favourite programming language to calculate sum of natural digits in consecutive order.
  • Ans. 

    This program calculates the sum of natural numbers in consecutive order up to a given limit.

    • Natural numbers start from 1 and go up to n.

    • The sum of the first n natural numbers can be calculated using the formula: n * (n + 1) / 2.

    • Example: For n = 5, the sum is 1 + 2 + 3 + 4 + 5 = 15.

    • Example: For n = 10, the sum is 1 + 2 + ... + 10 = 55.

  • Answered by AI
  • Q3. What is Operating System? Explain different OSI Layers.
  • Ans. 

    An Operating System (OS) manages computer hardware and software, providing services for computer programs.

    • An OS acts as an intermediary between users and computer hardware.

    • Examples of popular operating systems include Windows, macOS, and Linux.

    • The OS manages resources like CPU, memory, and storage.

    • It provides a user interface, such as command line or graphical interface.

    • Operating systems can be classified as batch, tim...

  • Answered by AI
  • Q4. Differentiate between Int, Float, Long integers.
  • Ans. 

    Int, Float, and Long are data types used to represent numbers in programming, differing in size and precision.

    • Int (Integer): Represents whole numbers without decimals. Example: 5, -3, 42.

    • Float (Floating-point): Represents numbers with decimals, allowing for fractional values. Example: 3.14, -0.001.

    • Long: A larger integer type that can store bigger whole numbers than Int. Example: 1234567890.

    • Size: Int typically uses 4 by...

  • Answered by AI
  • Q5. Where do you see yourself in 5 years after joining our company?
  • Ans. 

    In five years, I envision myself as a skilled engineer, contributing to innovative projects and leading teams within the company.

    • I aim to deepen my technical expertise in systems engineering, possibly earning certifications like AWS or PMP.

    • I see myself taking on leadership roles, mentoring new team members, and guiding projects to successful completion.

    • I hope to contribute to innovative projects that enhance our compan...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Be true to yourself. Present yourself without copying others.
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

TCS Ninja exam was held and whoever selected was sent a mail

Round 2 - Technical 

(1 Question)

  • Q1. Based on networking and OSI Models
Round 3 - HR 

(1 Question)

  • Q1. Based on hobbies and other preferences
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(1 Question)

  • Q1. Aptitude and Coding test
Round 2 - Technical 

(1 Question)

  • Q1. Basic coding questions were asked

Interview Preparation Tips

Interview preparation tips for other job seekers - If you are a fresher. Just prepare any language with basic coding skills.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Nov 2022. There were 6 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Aptitude Test 

1. Quant Section
2. Reasoning
3. Verbal
(Duration - 1 hr)

Round 3 - Aptitude Test 

1. Adavance Quant
2. Advance Reasoning
(Duration - 1 hr)

Round 4 - Coding Test 

1. Moderate Level Code
2. Advance Level Code
(Duration - 1 hr)

Round 5 - Technical 

(3 Questions)

  • Q1. TR is held almost a month after exam. Selected candidates gets a chance to sit for the interview. Main topics include DSA, Database, Networking and personal projects.
  • Q2. 1. Introduce yourself 2. Your preferred languages 3. What have you done in your project and what are the technologies you have used? 4. What is a binary tree? 5. What is hash table? 6. How many types of so...
  • Ans. 

    Interview questions for Assistant System Engineer Trainee

    • Introduced myself and mentioned preferred languages

    • Explained my project and the technologies used

    • Defined binary tree, hash table, sorting, linked list, dynamic arrays, tree, graph, and AVL tree

    • Described database models, NoSQL, ACID properties, and query optimization

    • Differentiated between primary key and foreign key, delete and truncate commands, and TCP and UDP p...

  • Answered by AI
  • Q3. Do not memorize these questions only. Go hard for the whole topics.
Round 6 - HR 

(2 Questions)

  • Q1. If u qualify in TR, this round is held just after TR on the same day and via same link.
  • Q2. 1. Are you comfortable with relocation? 2. What will you do if you don't get a project of your choice? 3. Why do you want to join TCS? 4. What if another company provides you higher salary than TCS? 5. Why...
  • Ans. 

    Interview questions for Assistant System Engineer Trainee at TCS

    • Yes, I am comfortable with relocation.

    • If I don't get a project of my choice, I will still work hard and try to learn as much as possible from the project assigned to me.

    • I want to join TCS because it is a reputed company with a global presence and provides ample opportunities for growth and learning.

    • Salary is not the only factor for me. I value the learning...

  • Answered by AI

Interview Preparation Tips

Topics to prepare for TCS Assistant System Engineer Trainee interview:
  • DSA
  • Database
  • Networking
  • Project
Interview preparation tips for other job seekers - If you are a fresher practice aptitude more than coding since for getting a job in TCS aptitude is more important than coding. Don't just rely on things taught by your college. Go hard for DSA. 60-70% of the questions were from DSA. It's quiet good if u can answer 70% of these questions. I myself was not able to answer all these questions. The more accurate your answers are the harder the questions get. If the level of questions increases every time then there's a high chance that TR is impressed with you. If u are not from CSE or IT background my suggestion is for them to start preparation at least 3 months prior examination.

TCS Interview FAQs

How many rounds are there in TCS Assistant System Engineer Trainee interview for freshers?
TCS interview process for freshers usually has 3-4 rounds. The most common rounds in the TCS interview process for freshers are Technical, Aptitude Test and HR.
What are the top questions asked in TCS Assistant System Engineer Trainee interview for freshers?

Some of the top questions asked at the TCS Assistant System Engineer Trainee interview for freshers -

  1. Basic print function of python and OOPS concept explanat...read more
  2. Write a sql query to find all records whose base branch city is kolkata and hav...read more
  3. Principles of oops and explain agile methodologies and explain uses of stack an...read more
What are the most common questions asked in TCS Assistant System Engineer Trainee HR round for freshers?

The most common HR questions asked in TCS Assistant System Engineer Trainee interview are for freshers -

  1. Tell me about yourse...read more
  2. What are your strengths and weakness...read more
  3. Where do you see yourself in 5 yea...read more
How long is the TCS Assistant System Engineer Trainee interview process?

The duration of TCS Assistant System Engineer Trainee interview process can vary, but typically it takes about less than 2 weeks to complete.

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Overall Interview Experience Rating

4.2/5

based on 29 interview experiences

Difficulty level

Easy 36%
Moderate 64%

Duration

Less than 2 weeks 40%
2-4 weeks 36%
4-6 weeks 20%
6-8 weeks 4%
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TCS Assistant System Engineer Trainee Salary
based on 5.6k salaries
₹2.8 L/yr - ₹5 L/yr
At par with the average Assistant System Engineer Trainee Salary in India
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TCS Assistant System Engineer Trainee Reviews and Ratings

based on 726 reviews

3.6/5

Rating in categories

3.3

Skill development

3.7

Work-life balance

2.8

Salary

4.4

Job security

3.6

Company culture

2.8

Promotions

3.1

Work satisfaction

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